Nesota



N V 1 2 June 14, 1927. J. H CROSS .63 000 CRESCENT RADIATOR Filed Dec. 30, 1926 2 Sheets-Sheet 1 Pf/z u m fi FIG.

I INvEN'roR; JOHN H.,CF?OSS Juhe 14, 1927. V J. H. CROQS CRESCENT RADIATOR.

2 Sheets-Sheet 2 Filed Dec. 30, 1926 I NVENTQR JOHN H. CROSS Patented June 14, 1927.

UNITED; STATES PATENT 7 OFFICE;

Joan E. mass, or MINNEAPOLIS, mmm som, AssIGNoR TO THE WATERMAN WATEBBUBY COMPANY, or MINNEAPQLIS, MINNESOTA, A oonroaacrron or Mm- NESOTA.

CRESCENT RADIATOR.

Application filed December 30, 1926. Serial No. 157,993.

This invention relates to improvements in furnaces and is particularly directed to provements in that portion'ot' thehot a1r furnace known as the crescent radiator.

This radiator is attached at the rear of the main radiator, and both are surrounded by the outer radiating casing.

An object of the present invent on is to produce a thorough circulation of air in the radiator, and at the same time cause the heated airto be spread or directed to engage and heat the maximum area of the radiating surface. Another object-of the invention is to properly spread the heat in; the manner 1.5 above mentioned, but to positively prevent choking of the circulation Another 01316017 of the invention is tocause the entirecolumn of the heated air tobe carried'laterally thence to the bottom of the radiator then 2 across the bottom in direction of greatest dimension and finally upwardly and out of the stack, this giving the column a zig zag substantially triangular path, having 1ts apex at level of the smoke flues.

the heater or furnace;

' n being taken through the outer casing of F'gure 3 is a horizontal section taken substantially on line 3 3 of Figure 1 and Figure- 1 is a vertical section through the radiator takensubstantially on the line 4 4 of Figure 3. I

Numeral 1 designates the furnace casing and 2 the crescent radiator. The crescent 45 radiator is supported at the bottom by a bracket 4 and at the top by the connected flanged flue extensions 5 and 6. A thirnble 7 extends through the connected flanged flue extensions as shown. This construction 50 may be viewed as constituting the intake flue for the crescent radiator. The smoke flue is indicated at 9. The thimble 7 and flue 9 are horizontally alined. It is to be understood that elements 7 and 9 constitute ures 3 in the opposite direction and the baflles aligned smoke outlet flues. Adjacent the lower end, the crescent radiator is provided with a clean-out flue 10. V

Arranged within the radiator, and attached to and depending from the top, is a vertical partition in this instance having oppositely extending curved terminal portions which are respectively connected as at 1617 with the outer-and inner walls 19-20 of the radiator; The partition 15 has centrally thereof a damper suitably mounted upon a rotatable rod.26,.and arranged to close the opening 28. This rod extends uppwardly throughxthe top. of the-crescent radiator and has a suitable arm having an operating link-or rod'31 extending to the front of the heater. The opening 28 is horizontally alined with the elements 7 and 9.. The partition 15' extends downwardly well towards the bottom of -the:radiator,.but is spaced thereabove substantially ,as shown 'in Figures 1.. and 4.

. In order to cause. the products of combustion to be first directed downwardly toward the bottom surface of the radiator, and

then caused to travel horizontally and then rise, I providea pair of battles 36 which are slantingly arranged at opposite sides of theflue partition below thelevel of the fines,

the battles being slanted in opposite directions, and being extended outwardly beyond and downwardly below the bottom of the partition. The upperend of the baffle 85 is disposed substantially as shown while the tition and downwardlyas best shown in Figand 4.. The other baffle 36 extends are substantially symmetrically related as viewed in edge view, for instance as in F igure 4. The lower end 40 of each of the baffles is spaced from each end ll'of the radiator, in such a manner that the circulating spaces designated 42 are of approximately the same or of slightly larger area thanthat'of the elements 7 and 9. Thisis to secure free circulation of the products of combustion. After passing downwardly at the inner side of the radiator the products of combustion are forced entirely across the same in direction of its greatest horizontal dimension, and then rise and pass in an opposite direction upwardly to the flue 9. The bafiles are preferably cast integral with the lower end projects laterally of the fiueparpartition 15, so that the plate with its baflies and a unit may be placed in position, or withdrawn therefrom. However, the arrangement of the baffles is the importantthe smoke stack.

It will be further noted that the disposition of the lower ends of the battles in refer ence to the adjacent front rear and end walls of the radiator is such that a free circulation of products of combustion around the ends of the baflies is obtained.

Iclaim as my invention:

1. A crescent radiator including smoke inlet and outlet flues, a partition depending between the flues and having its lower end adjacent the bottom of the casing, and a bafile arranged laterally one at each side of the partition, below the level of the fines and slanting in opposite directions and engaging the walls of the radiator, and having their lower ends arranged withreference to the radiator walls to form circulation openings adjacent the bottom of the radiator, and at opposite ends of the casing in direction of the greatest horizontal dimension.

2. A crescent radiator including smoke inlet and outlet flues, a partition depending from the casing and separating the fines, and having its lower end adjacent the bottom of the casing, and a battle arranged laterally at each side of said partition to cause the products of combustion to pass laterally and downwardly from one of the outlet flues, thence laterally and horizontally in direction of longest dimension of the radiator adjacent the bottom, then upwardly and laterally in the opposite direction to the other outlet flue.

3. A crescent radiator including alined smoke inlet and outlet flues, adjacent its upper portion a vertical partition depending from the top of the casing and separating the fines, and having its lower end adjacent the bottom of the casing, and a bafile arranged laterally at each side of said partition and slantmg in opposite directions, and

having their lower ends extended beyond the partition in opposite directions to a point adjacent the bottom of the radiator, the ends being arranged to form circulation openings. A. A crescent radiator including radia 1y arranged, alined, smoke inlet and outlet flues, a vertical partition depending from the top of the casing passing between the dues and spaced from the open end thereof, and having its lower end adjacent but spaced upwardly from the bottom of the casing, a damper in said partition in opposition to said flues, and a balile arranged laterally at each side of said partition below the level of the flues and slanting in opposite directions, and having their lower ends extended beyond the partition in opposite directions to a point adjacent the bottom of the radiator, the ends being arranged with reference to the Walls of the radiator to form circulation openings, and the front and rear ed es of said baffles being substantially sealingly engaged with the corresponding faces of the radiator casing, and depending partition.

5. A partition for a crescent radiator having a slantingly arranged plate extending from each opposite side, said plates slanting in opposite directions, and said plate marginally formed and said plates having outer edges arranged to engage. the walls of the radiator.

6. A crescent radiator including smoke inlet and outlet flucs, a partition depending between the flues, and a battle laterally arranged one at each side of the partition, said baffles slanting in opposite directions and engaging the walls of the radiator, and having their lower ends arranged adjacent the bottom of the radiator to form a circulation passage at opposite ends of the casing, in direction of the greatest horizontal dimension.

7 A crescent radiator including smoke inlet and outlet flues, a vertical partition separating the fiues, and baffles arranged laterally one at each side of said partition to cause the products of combustion to pass laterally and downwardly from one of the outlet flues, thence laterally and horizontally in direction of the longest dimension of the radiator and adjacent the bottom, and then upwardly and laterally in the opposite direction to the other outlet flue.

In witness whereof, I have hereunto set my hand this 22nd day of December 1926.

JOHN H. GROSS. 

